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Structural principle of servo planetary reducer

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Structural principle of servo planetary reducer

Puhe af115 method LAN installation servo planetary reducer / low backlash / suitable for 750w.1000w.2000w structure: planetary gear, sun gear and outer ring gear.
Due to the structure of planetary reducer, the single-stage deceleration is 3-ratio, and the general speed ratio is no more than 10. The common speed ratio is 3.4.5.6.8.10. The number of reducer stages generally does not exceed three levels, but some customized reducers with large speed ratio have 4-level deceleration. Compared with other reducers, planetary reducer has the characteristics of high rigidity, (single-stage can achieve less than 1 point), high transmission efficiency (single-stage is 97% - 98%), high torque / volume ratio, lifelong maintenance free, etc. Planetary reducers are mostly installed on stepping motors and servo motors to reduce speed, increase torque and match inertia. The transmission mechanism of planetary gear reducer is gear. Its structural diagram is very simple. Imagine that there are two circles, one large and one small. The two circles are concentric. There are three other small circles in the annular part between the two circles. The larger of all circles is the internal gear ring, and the other four small circles are gears. The middle one is called the sun gear, The other three small circles are called planetary gears. The servo motor drives the sun gear of the reducer, and the sun gear drives the planetary gear supported on the inner gear ring. The planetary gear drives the output shaft connected with the outer gear ring through its meshing transmission with the outer gear ring, so as to achieve the purpose of deceleration.
Puhe af115 method LAN installation servo planetary reducer / low back clearance / suitable for 750w.1000w.200

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